One problem related to rear window wiper washer has been reported for the 1997 Nissan Sentra. The most recently reported issues are listed below.
Vehicle engine was idling car was in park. Turned on windshield wiper switch I heard a loud knock in the dash console and could hear a mechanism sound as if windshield wipers were moving but the wipers themselves did not move so the result of this is no visibility without windshield wipers working on rainy days. Unable to drive vehicle.